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    MasterEmaco N 423RS: Fast-setting concrete-repair mortar for horizontal, vertical and overhead use

    Formerly: Emaco FS

    How does MasterEmaco N 423RS work?

    MasterEmaco N 423RS is a fast-setting, polymer-modified, cementitious repair mortar for horizontal, vertical or overhead surfaces.

    Recommended uses:

    • Interior and exterior
    • Vertical and overhead
    • Horizontal
    • Above and below grade
    • Spalls or holes in concrete
    • Deteriorated edges

    What are the unique features of MasterEmaco N 423RS?

    • Non-sag consistency able to be placed in 1" (25 mm) thick lifts
    • Fast-setting
    • Only requires the addition of potable water

    What are the benefits of MasterEmaco N 423RS?

    • Polymer modification improves adhesion and provides increased freeze/thaw stability
    • Can be mixed with MasterEmaco A 400 to increase high-performance properties

    On the Job Videos

    US / Canada Product Information

    Data Guide

    Data Guide (French)

    Certification Letter

    LEED Letter

    Direct contact

    Master Builders Solutions Technical Support

    Construction Systems


    Safety Data Sheet (SDS)

    Find all available safety data sheets for this product.

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    Related Literature

    Certification Letter

    pdf (89.98 Kb)

    Data Guide

    pdf (274.82 Kb)

    Data Guide (French)

    pdf (132.50 Kb)

    LEED Letter

    pdf (92.94 Kb)

    MasterEmaco N 423RS SDS

    pdf (257.67 Kb)

    MasterEmaco N 423RS SDS

    pdf (316.26 Kb)